replace OVERRIDE and FINAL with override and final in chrome/browser/[j-q]*

chrome/browser/media_galleries/fileapi/mtp_file_stream_reader.h

Index: chrome/browser/media_galleries/fileapi/mtp_file_stream_reader.h
diff --git a/chrome/browser/media_galleries/fileapi/mtp_file_stream_reader.h b/chrome/browser/media_galleries/fileapi/mtp_file_stream_reader.h
index 584b323865f73ec3741215bd624bdf9854c82e90..7fcfcacfe0d535ceff482c116c3ffff4686bb840 100644
--- a/chrome/browser/media_galleries/fileapi/mtp_file_stream_reader.h
+++ b/chrome/browser/media_galleries/fileapi/mtp_file_stream_reader.h
@@ -34,9 +34,9 @@ class MTPFileStreamReader
 
   // FileStreamReader overrides.
   virtual int Read(net::IOBuffer* buf, int buf_len,
-                   const net::CompletionCallback& callback) OVERRIDE;
+                   const net::CompletionCallback& callback) override;
   virtual int64 GetLength(
-      const net::Int64CompletionCallback& callback) OVERRIDE;
+      const net::Int64CompletionCallback& callback) override;
 
  private:
   void FinishValidateMediaHeader(